3857836545 has 16 divisors (see below), whose sum is σ = 6858376320. Its totient is φ = 2057512752.

The previous prime is 3857836523. The next prime is 3857836553. The reversal of 3857836545 is 5456387583.

3857836545 is a `hidden beast` number, since 3 + 8 + 578 + 3 + 65 + 4 + 5 = 666.

3857836545 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3857836545 - 2⁷ = 3857836417 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3857836491 and 3857836500.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14288149 + ... + 14288418.

It is an arithmetic number, because the mean of its divisors is an integer number (428648520).

Almost surely, 2^3857836545 is an apocalyptic number.

It is an amenable number.

3857836545 is a deficient number, since it is larger than the sum of its proper divisors (3000539775).

3857836545 is a wasteful number, since it uses less digits than its factorization.

3857836545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28576581 (or 28576575 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The square root of 3857836545 is about 62111.4848075620. The cubic root of 3857836545 is about 1568.3678854937.

The spelling of 3857836545 in words is "three billion, eight hundred fifty-seven million, eight hundred thirty-six thousand, five hundred forty-five".